KDS-R50XBR1, KDS-R60XBR1 - Sony TV Service Manual (repair manual). Page 13

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- This device includes a self-diagnosis function.
- In case of abnormalities, the POWER/STANDBY indicator automatically blinks. It is

possible to predict the abnormality location by the number of blinks. The Instruction
Manual describes blinking of the POWER/STANDBY indicator.

- If the symptom is not reproduced sometimes in case of a malfunction, there is recording of

whether a malfunction was generated or not. Operate the remote command to confirm the
matter on the screen and to predict the location of the abnormality.

- When a malfunction occurs the POWER/STANDBY indicator only blinks for one of the

following diagnosis items. In case of two or more malfunctions, the item which first
occurred blinks. If the malfunctions occurred simultaneously, the item with the lower
blink count blinks first.

- The screen display displays the results regarding all the diagnosis items listed below.

The display "0" means that no malfunctions occurred.

La

Temp error

mp cover error

3 times

2 times

- L

- Set temperture is high.
- Temp sensor connector 
  is not attached securely.
  

 

-Lamp is not set securely.

amp cover is not

attached securely.

Lamp driver error

5 times

- Lamp driver is faulty.

- No picture/No sound

Low B error

6 times

- B_12V is not supplie

(GT board)

d.

- No picture/No sound

- Lamp for the light
source burns out.

- No picture/No sound

- No picture/No sound

- Short-circuit of Audio power
supply line.
-Blow out of fuse.
(PS3001 on K board)
-IC failure.
(IC3005 on K board)

D-

ATSC OVP

OVP error

8

10 times

times

-B -12V is over voltage.
(B board)

-Q_10.5V is over voltage.
(GT board)

- No picture/No sound

Fan stopped

4 times

- F an 1-4 power is not
supplied. (

- F

-Fan caught wires or 
harnesses.

an connector is not

attached securely.

- No picture/No sound

Lamp error

LAMP-LED flashes

- No picture/No sound

Audio error

7 times

- No picture/No sound

- No picture/No sound